Overview

overview

10

Static

static

b72beb391c...le.exe

windows7_x64

10

b72beb391c...le.exe

windows10_x64

10

Analysis

  • max time kernel
    89s
  • max time network
    110s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    02-05-2021 15:37

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General

  • Target

    b72beb391c75af52c6fb62561f26214b682f12d95660b128d9e21e18e3bff246.bin.sample.exe

  • Size

    224KB

  • MD5

    989ee63147c4bcd4f6d46be0fb1c3a9f

  • SHA1

    da7338c8027cf9da934479c1fd3317f376639917

  • SHA256

    b72beb391c75af52c6fb62561f26214b682f12d95660b128d9e21e18e3bff246

  • SHA512

    e0ef202a4584b34d46b2052ec4a708df4ca0e1064158df73bd84b8235d307c8e342ca8f93e9fbc6fa4268a857503468d33400619bc20c8225c1083b1576df382

Score
10/10
ragnarlockerbootkitpersistenceransomwareupx

Malware Config

Extracted

Path

C:\Users\Public\Documents\RGNR_B408CE06.txt

Family

ragnarlocker

Ransom Note
***************************************************************************************************************** HELLO EDP.com ! If you reading this message, then your network was PENETRATED and all of your files and data has been ENCRYPTED by RAGNAR_LOCKER ! ***************************************************************************************************************** !!!!! WARNING !!!!! DO NOT Modify, rename, copy or move any files or you can DAMAGE them and decryption will be impossible. DO NOT use any third party or public decryption software, it also may damage files. DO NOT Shutdown or reset your system ------------------------------------- There is ONLY ONE possible way to get back your files - contact us and pay for our special decryption key ! For your GUARANTEE we will decrypt 2 of your files FOR FREE, as a proof of our capabilities Don't waste your TIME, the link for contacting us will be deleted if there is no contact made in closest future and you will never restore your DATA. HOWEVER if you will contact us within 2 day since get penetrated - you can get a very SPECIAL PRICE. ATTENTION ! We had downloaded more than 10TB of data from your fileservers and if you don't contact us for payment, we will publish it or sell to interested parties. Here is just a small part of your files that we have, for a proof (use Tor Browser for open the link) : http://p6o7m73ujalhgkiv.onion/?p=171 We gathered the most sensitive and confidential information about your transactions, billing, contracts, clients and partners. And be assure that if you wouldn't pay, all files and documents would be publicated for everyones view and also we would notify all your clients and partners about this leakage with direct links. So if you want to avoid such a harm for your reputation, better pay the amount that we asking for. ============================================================================================================== ! HERE IS THE SIMPLE MANUAL HOW TO GET CONTACT WITH US VIA LIVE CHAT ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! a) Download and install TOR browser from this site : https://torproject.org b) For contact us via LIVE CHAT open our website : http://mykgoj7uvqtgl367.onion/client/?6bECA2b2AFFfBC1Dff0aa0EaaAd468bec0903b5e4Ea58ecde3C264bC55c7389E c) For visit our NEWS PORTAL with your data, open this website : http://p6o7m73ujalhgkiv.onion/?page_id=171 d) If Tor is restricted in your area, use VPN When you open LIVE CHAT website follow rules : Follow the instructions on the website. At the top you will find CHAT tab. Send your message there and wait for response (we are not online 24/7, So you have to wait for your turn). *********************************************************************************** ---RAGNAR SECRET--- NmJFQ0EyYjJBRkZmQkMxRGZmMGFhMEVhYUFkNDY4YmVjMDkwM2I1ZTRFYTU4ZWNkZTNDMjY0YkM1NWM3Mzg5RQ== ---RAGNAR SECRET--- ***********************************************************************************
URLs

http://p6o7m73ujalhgkiv.onion/?p=171

http://mykgoj7uvqtgl367.onion/client/?6bECA2b2AFFfBC1Dff0aa0EaaAd468bec0903b5e4Ea58ecde3C264bC55c7389E

http://p6o7m73ujalhgkiv.onion/?page_id=171

Signatures

  • RagnarLocker

    Ransomware first seen at the end of 2019, which has been used in targetted attacks against multiple companies.

    ransomwareragnarlocker
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Executes dropped EXE 1 IoCs
  • Modifies extensions of user files 8 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Drops startup file 1 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • Drops file in Program Files directory 64 IoCs
  • Program crash 1 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b72beb391c75af52c6fb62561f26214b682f12d95660b128d9e21e18e3bff246.bin.sample.exe
    "C:\Users\Admin\AppData\Local\Temp\b72beb391c75af52c6fb62561f26214b682f12d95660b128d9e21e18e3bff246.bin.sample.exe"
    1⤵
    • Modifies extensions of user files
    • Drops startup file
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:632
    • C:\Users\Admin\AppData\Local\Temp\b72beb391c75af52c6fb62561f26214b682f12d95660b128d9e21e18e3bff246.bin.samplemgr.exe
      C:\Users\Admin\AppData\Local\Temp\b72beb391c75af52c6fb62561f26214b682f12d95660b128d9e21e18e3bff246.bin.samplemgr.exe
      2⤵
      • Executes dropped EXE
      PID:772
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 772 -s 272
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3716
    • C:\Windows\System32\Wbem\wmic.exe
      wmic.exe shadowcopy delete
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3984
    • C:\Windows\SYSTEM32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      2⤵
      • Interacts with shadow copies
      PID:3156
    • C:\Windows\SysWOW64\notepad.exe
      C:\Users\Public\Documents\RGNR_B408CE06.txt
      2⤵
      • Opens file in notepad (likely ransom note)
      PID:1512
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3832

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Bootkit

1
T1067

Privilege Escalation

Defense Evasion

File Deletion

2
T1107

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

2
T1490

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\b72beb391c75af52c6fb62561f26214b682f12d95660b128d9e21e18e3bff246.bin.samplemgr.exe
    MD5

    d5ca6e1f080abc64bbb11e098acbeabb

    SHA1

    1849634bf5a65e1baddddd4452c99dfa003e2647

    SHA256

    30193b5ccf8a1834eac3502ef165350ab74b107451145f3d2937fdf24b9eceae

    SHA512

    aa57ce51de38af6212d7339c4baac543a54b0f527621b0ef9e78eca5e5699e8508a154f54f8ac04135527d8417275eeee72a502a362547575699330cc756b161

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\b72beb391c75af52c6fb62561f26214b682f12d95660b128d9e21e18e3bff246.bin.samplemgr.exe
    MD5

    d5ca6e1f080abc64bbb11e098acbeabb

    SHA1

    1849634bf5a65e1baddddd4452c99dfa003e2647

    SHA256

    30193b5ccf8a1834eac3502ef165350ab74b107451145f3d2937fdf24b9eceae

    SHA512

    aa57ce51de38af6212d7339c4baac543a54b0f527621b0ef9e78eca5e5699e8508a154f54f8ac04135527d8417275eeee72a502a362547575699330cc756b161

    Download Submit
  • C:\Users\Public\Documents\RGNR_B408CE06.txt
    MD5

    ebb1e76a32908e6653c933364985f639

    SHA1

    69fc0b1ed4cd4548bb4ebbe3d9f2bf7934735ff7

    SHA256

    1c6ab30444efec425084c396107d7f66371bfc526f6f11480263de22a8233c8f

    SHA512

    e35ebebb5c69e26127be6246ca44d8819cc19cbb7fa9eaa861367b414605eb71b66e440fd5bfa404ab950730053e87d5c7daf0bbab7296ee8bd724c81f730abe

    Download Submit
  • memory/632-118-0x00000000001D0000-0x00000000001D2000-memory.dmp
    Filesize

    8KB

    Download
  • memory/632-119-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

    Download
  • memory/772-114-0x0000000000000000-mapping.dmp
    Download
  • memory/772-117-0x0000000000460000-0x00000000005AA000-memory.dmp
    Filesize

    1.3MB

    Download
  • memory/1512-122-0x0000000000000000-mapping.dmp
    Download
  • memory/3156-121-0x0000000000000000-mapping.dmp
    Download
  • memory/3984-120-0x0000000000000000-mapping.dmp
    Download